








Amwater NSF/ANSI 42 Stainless Steel 20” Whole House Filter
The Amwater NSF-certified housing filter is built entirely from premium 304 stainless steel—head, lock ring, and sump—for exceptional durability, corrosion resistance, and high-temperature tolerance. Reliable in both residential and challenging environments, it performs effectively in applications such as well water, pools, irrigations, HVAC systems, laboratories, and food and beverage processing.
Paired with our reusable stainless steel sediment filters, it acts as a strong first line of defense, efficiently removing coarse materials and protecting your overall water filtration setup and appliances.
- Head, ring, sump
- One set of o-ring & gaskets
- Opening stick
- Wall mount

Product Overview
Full Food-Grade 304 Stainless Steel Construction
This housing filter is constructed entirely from food-grade 304 stainless steel—including the head, lock ring, and sump—for superior durability and safety. It resists corrosion, handles high temperatures, and ensures long-term performance in both residential and commercial settings. A robust solution built to withstand harsh water conditions.
Reliable First Line of Defense
Designed to trap large particles, sediments, and rust before they reach your main filtration system, this housing filter protects and extends the life of downstream cartridges. Ideal for well water, pool pumps, HVAC systems, and more—perfect for users who want consistent, clog-free filtration in diverse environments.
Wide Compatibility with Reusable Filters
This housing unit is fully compatible with Amwater’s reusable wire mesh and pleated filter cartridges, and also fits standard filters with a bottom spring design. It offers flexibility for ongoing maintenance and replacement, whether you're using our proprietary filters or third-party options, making it easy to integrate.
- Product Materials: SS304 - Head, Ring and Sump
- Max Temperature: 97°C
- Max PSI: 300 PSI
Reusable Wire Mesh Sediment Filter: SS Wire Mesh Sediment Filter Replacement
Reusable Pleated Sediment Filter: SS Pleated Sediment Filter Replacement

Why Choose Amwater Over Plastic Housings?
Amwater filters feature all-stainless-steel construction for unmatched durability and purity. Unlike plastic housings, they resist cracking, avoid taste contamination, and deliver long-lasting performance—making them the better choice for safe, clean water in any setting.

Compatible with Standard Filter Cartridges
Engineered to fit a wide range of standard-sized filter cartridges in both length and diameter. The internal spring mechanism provides secure alignment and a tight seal, ensuring smooth installation and reliable filtration across various applications and brands.

Built with Premium 304 Stainless Steel
Crafted from high-quality 304 stainless steel, this housing offers exceptional resistance to heat, pressure, and corrosion. Designed for long-term durability, it performs reliably in demanding environments without compromising structural strength or water quality.